Puzzle for all

Manmohan ACA, CS (Chartered Accountant ) (14243 Points)

03 May 2009  

puzzle

Dear Friends,
Only smart people can open this file i am confident that you can solve it.....once you succeed to open this file, you will find names of the people who have managed to opent this....all the best....

How to open attached file???

There is a bus with 7 girls.
Each girl has 7 bags.
In each bag, there are 7 big cats
Each big cat has 7 little cats.
Each cat has 4 legs.
Question: How many legs are present in bus?

Number of legs is password to open attached file.
If you will open the file, write your name on the list inside, and send this email to your friends to let them solve this riddle

Regards
Manmohan